Description These chisels are used for cutting and shaping metals. They come in (6) classes: Cape, Cold, Concave Splitting, Diamond Point, Half Round and Blacksmith’s Cold. Made of hardened alloy steel. For hand use only. Class 5: Half-Round. For cutting grooves. 5-1/2″ L, 1/4″ Cut, 3/8″ Hex Shank